[EN] OLEFIN POLYMERIZATION COCATALYSTS DERIVED FROM GROUP-15 COMPOUNDS AND PROCESSES USING THEM<br/>[FR] COCATALYSEURS DE POLYMERISATION D'OLEFINES DERIVES DE COMPOSES DU GROUPE-15 ET PROCEDES LES METTANT EN OEUVRE
申请人:EXXON CHEMICAL PATENTS INC
公开号:WO2001042249A1
公开(公告)日:2001-06-14
Fluorinated amine compounds, R'iArF-ER2, where ArF is a fluoroaryl substituent, E is nitrogen or phosphorous, each R is independently a C1-C20 hydrocarbyl substituent, or the two R's may be connected to form an unsubstituted or substituted C2-C20 cycloaliphatic substituent, R' is a C1-C20 hydrocarbyl or halogenated hydrocarbyl, and i is 0, 1 or 2 are disclosed. These compounds may be protonated and complexed with suitable substantially noncoordinating anions to prepare polymerization catalyst components. When these catalyst components are combined with organometallic catalyst precursors, the catalyst precursor is activated to a catalyst. This catalyst is combined with monomer under olefin polymerization conditions to prepare polymer. High number-average molecular weight polymers at high productivity rates were observed from using metallocene catalysts activated with [N-pentafluorophenyl pyrrolidinium] [tetrakis(pentafluorophenyl) borate].